Comprehensive evaluation method of geological environment quality in Beijing based on AHP

Analytic hierarchy process (AHP) is one of the important methods for the comprehensive evaluation of geological environment quality.Evaluation index system is the key to evaluate success or failure. In the current research, a single evaluation index system cannot effectively represent the geological environmental quality characteristics of different geomorphological types. The evaluation index system of geological environment for two geomorphologic types was established in order to carry out the comprehensive evaluation of geological environment quality in Beijing area. The results show that in the evaluation of regional geological environment quality, different evaluation index systems based on geomorphic types can reflect the geological environment quality and spatial distribution of different geomorphic types more reasonably and accurately.